Big differences
For the first time in history we have millions of immigrants who are not here for our culture or our freedoms but for our money. Many live here only long enough to ship the money back home. Billions of US dollars are shipped out to Mexico every month so President Fox doesn't have to create a viable economy.
The hordes are almost wholly uneducated except for a very small minority, and, unlike any in previous history, feel they can skate by working in our land while only speaking Spanish and demand things be provided for them in Spanish.
These aren't immigrants - these are quasi-polite looters.
And with each day, thanks to socialists like yourself, they get more emboldened, mored demanding and less polite.